Changelog

Notable changes since 13 October 2026

What's new and what we fixed, newest first.

25 October

Accessibility fixes: keyboard focus stays inside dialogs and the command palette, every field shows a clear focus ring, links in text are underlined, light mode has stronger contrast, and screen readers hear what the chain's IV markers mean.
Faster pages on phones, and pages show their content even before scripts finish loading.
Expiry dates with no options listed no longer appear in the chain.
Errors are now reported to us automatically, so we can fix problems sooner.
Report a problem: send us a note from the footer, the ⌘K menu or More on phones.

Eleven strategy guides had setup tables that didn't match their worked examples. They now do, and a check keeps them in step.
Option quotes are labelled indicative rather than “15-minute delayed”: the free feed adjusts its quotes but doesn't delay them. Only last trades run about 15 minutes late.
Zero-days-to-expiry Greeks, profit ranges and expected-move bands are more accurate.

Shared links open straight on the trade, and Share is now a menu: copy the link, copy the card image, or post it.
The options chain works properly on phones, with the expected move up front.
Strategy guides lead with the example's dollar answers, and the iron condor guide's breakevens are corrected.
The tools are shareable and phone-friendly, with worked examples.

A redesign of the whole app, with light and dark themes, a ⌘K command palette and a layout made for phones.
A short welcome for first-time visitors and a few one-time tips in the calculator.
Every trade gets its own share link, which unfurls as a card showing its payoff.
Scan's probability of profit and expected value now match what the calculator shows for the same trade.

Accuracy: options now expire at the 4:00 pm New York close, through daylight-saving changes and early closes, instead of an hour early in winter.
Accuracy: each leg uses the interest rate for its own time to expiry, implied volatility is solved reliably, probability of profit accounts for the volatility skew, and breakevens are exact.
Data: the interest-rate curve comes from the US Treasury each day, dividends and ex-dividend dates are included in pricing, and each symbol shows its IV rank.
Saved trades, a watchlist and in-browser alerts.